Overlock equipment for production and processing of protective clothing

Abstract

The invention relates to the technical field of protective clothing production and processing, and discloses an overlock device for protective clothing production and processing, which comprises a workbench, a sewing machine is mounted at the top of the workbench, a tension adjusting assembly is arranged on the outer side of the sewing machine, and an auxiliary overlock mechanism and a thread residue cleaning mechanism are respectively arranged at two positions of the top of the workbench. The auxiliary overlock mechanism comprises an electric telescopic rod, the electric telescopic rod is rotatably connected to the interior of a shell of the sewing machine, the output end of the electric telescopic rod is fixedly connected with a pressing box, four anti-slip strips are fixedly connected to the bottom of the pressing box, and a groove is formed in the top of the workbench. Fabric is pressed through the pressing box, sliding of selvedges during overlock is avoided in cooperation with an anti-skid structure, meanwhile, automatic selvedge changing of the fabric is achieved by means of a mechanical structure, manual adjustment is not needed, the stability and accuracy of the overlock process are guaranteed, manual operation steps are reduced, and the overlock progress is greatly accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of production and processing of protective clothing, and in particular to a side-locking device used for production and processing of protective clothing. Background Art

[0002] In the field of protective clothing production and processing, the hemming process is one of the key links to ensure the quality of protective clothing. As special clothing with protective functions, protective clothing often has fabrics with high elasticity and high strength. Especially in scenarios such as medical and chemical industries that have extremely high requirements for protective performance, the edges of protective clothing need to be tightly hemmed to prevent the fabric from unraveling and cracking, ensuring the protective effect and service life of the protective clothing. With the increasing emphasis on safety protection in various industries, the market demand for protective clothing has increased significantly, which has put higher requirements on the efficiency and hemming quality of protective clothing production and processing. As the core equipment for realizing this process, the performance of hemming equipment directly affects the production progress and quality of the finished product of protective clothing.

[0003] In the prior art, the hemming equipment used in the production and processing of protective clothing usually consists of a sewing machine as the core, a simple pressing mechanism and a workbench. In actual operation, the operator places the protective clothing fabric on the workbench and then starts the sewing machine to perform the hemming operation.

[0004] However, in actual production scenarios, existing edge-locking equipment has many problems. On the one hand, since the protective clothing fabric has high elasticity, the existing edge-locking equipment is unable to achieve a firm edge-locking effect on the highly elastic fabric, which easily causes the edge of the cloth to slide and the fiber to fall off, and the elasticity of the fabric after edge-locking is seriously lost. On the other hand, after the edge-locking is completed, a large number of thread ends will be scattered on the workbench of the existing equipment, which requires manual cleaning on a regular basis, which not only increases the workload of the operator, but also affects production efficiency. In mass production scenarios, the accumulated thread ends are also entangled on the equipment components, causing equipment failure. Therefore, the present invention provides an edge-locking equipment for the production and processing of protective clothing to solve the shortcomings of the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a locking device for the production and processing of protective clothing, which solves the problems provided in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A locking device for protective clothing production and processing, including a workbench, a sewing machine is installed on the top of the workbench, a tension adjustment component is provided on the outside of the sewing machine, and an auxiliary locking mechanism and a thread cleaning mechanism are respectively provided at two places on the top of the workbench. The auxiliary locking mechanism includes an electric telescopic rod, which is rotatably connected to the inside of the sewing machine shell, and the output end of the electric telescopic rod is fixedly connected to a press box, and the bottom of the press box is fixedly connected to four anti-slip strips. A groove is provided on the top of the workbench, and the groove is located directly below the press box.

[0007] Preferably, four limiting columns are fixedly connected to the inside of the groove, pads are placed on the top of the four limiting columns, a sleeve is fixedly connected to the bottom of the pad, and two limiting slots are opened on the outside of the sleeve.

[0008] Preferably, a rotating column is rotatably connected in the internal cavity of the workbench, the outer side of the rotating column is slidably connected to the inner side of the sleeve, the top of the rotating column is fixedly connected to a spring 1, the top of the spring 1 is fixedly connected to the inner side of the sleeve, and both sides of the outside of the rotating column are fixedly connected to limit rods, and the outer side of the limit rod is slidably connected to the inner side of the limit slot.

[0009] Preferably, the outer side of the rotating column is fixedly connected to a special-shaped block, and four shifting grooves are opened on the outer side of the special-shaped block. Motor 1 is installed in the internal cavity of the workbench, and the output end of motor 1 is fixedly connected to a crescent block, and the outer side of the crescent block is in contact with the outer side of the special-shaped block.

[0010] Preferably, an L-shaped shift block is fixedly connected to the outside of the output shaft of the motor 1, and the outer side of the L-shaped shift block is slidably connected to the inner side of the shift slot.

[0011] Preferably, the lint cleaning mechanism includes a second motor and a collection box, the second motor is installed at the bottom of the workbench, the output end of the second motor is fixedly connected to a transmission rod, the outer side of the transmission rod is fixedly connected to a cam, and the bottom of the workbench is fixedly connected to an air cylinder.

[0012] Preferably, a sliding rod is slidably connected to the through hole at one end of the air cylinder, one end of the sliding rod is fixedly connected to a piston, the outer side of the piston is slidably connected to the inner side of the air cylinder, and the other end of the sliding rod contacts the outer side of the cam.

[0013] Preferably, the outer sleeve of the sliding rod is provided with a spring 2, one end of the spring 2 is fixedly connected to the outer side of the air cylinder, the other end of the spring 2 is fixedly connected to the other end of the sliding rod, the other end of the air cylinder is fixedly connected to an air inlet pipe, the outer side of the air cylinder is fixedly connected to an air outlet pipe, a one-way valve is provided inside the air inlet pipe and the air outlet pipe, one end of the air outlet pipe is fixedly connected to a nozzle, and the nozzle is fixedly connected to the top of the workbench.

[0014] Preferably, the bottom of the collection box is fixedly connected to the top of the workbench, a slope block is fixedly connected to the opening of the collection box, the inner side of the collection box is rotatably connected to a flap, one end of the flap passes through the outer wall of the collection box and is fixedly connected to a pulley, and a belt is provided on the outer periphery of the pulley and the transmission rod.

[0015] Preferably, the tension adjustment assembly includes a mounting block, which is mounted on the outer casing of the sewing machine by bolts, and one side of the mounting block is fixedly connected to two tension spring telescopic rods, one end of the two tension spring telescopic rods is fixedly connected to a U-shaped plate, and the inner side of the U-shaped plate is rotatably connected to a thread retaining roller.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The present invention can effectively ensure the edge locking quality of high-elastic fabrics and improve work efficiency. The pressing box presses the fabric tightly, and the anti-slip structure is used to prevent the fabric edge from sliding during edge locking. At the same time, the mechanical structure is used to realize automatic edge changing of the fabric without manual adjustment. This not only ensures the stability and accuracy of the edge locking process, but also reduces the manual operation steps and greatly speeds up the edge locking process.

[0017] 2. The device of the present invention can automatically clean the thread ends on the workbench to maintain a clean working environment. It uses a pneumatic device to generate airflow to blow the thread ends toward the collection box. At the same time, the auxiliary thread ends are flipped into the collection box through the flap, avoiding the scattered thread ends that affect the operation, reducing the workload of manual cleaning of thread ends, and keeping the work area in an orderly state at all times. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front perspective view of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A top perspective view of the present invention; Figure 4 A bottom perspective view of the present invention; Figure 5 It is a structural schematic diagram of the auxiliary locking mechanism of the present invention; Figure 6 It is a structural schematic diagram of the crescent block of the present invention; Figure 7 It is a structural schematic diagram of the lint cleaning structure of the present invention.

[0019] Among them: 1. Workbench; 2. Sewing machine; 3. Auxiliary locking mechanism; 301. Electric telescopic rod; 302. Press box; 303. Anti-slip strip; 304. Groove; 305. Limiting column; 306. Pad; 307. Sleeve; 308. Limiting slot; 309. Motor 1; 310. Crescent block; 311. L-shaped shift block; 312. Rotating column; 313. Special-shaped block; 314. Slot; 315. Limiting rod; 316. Spring 1; 4. Thread end Cleaning mechanism; 401, motor 2; 402, transmission rod; 403, cam; 404, air cylinder; 405, sliding rod; 406, spring 2; 407, piston; 408, air inlet pipe; 409, air outlet pipe; 410, nozzle; 411, collecting box; 412, inclined block; 413, flap; 414, pulley; 5, tension adjustment assembly; 501, mounting block; 502, tension spring telescopic rod; 503, U-shaped plate; 504, line blocking roller. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1 -Attached Figure 7 , the present invention is described in further detail.

[0021] The present invention provides a side-locking device for the production and processing of protective clothing, comprising a workbench 1, a sewing machine 2 is mounted on the top of the workbench 1, a tension adjustment assembly 5 is provided on the outside of the sewing machine 2, an auxiliary side-locking mechanism 3 and a thread cleaning mechanism 4 are provided at two locations on the top of the workbench 1, the auxiliary side-locking mechanism 3 comprises an electric telescopic rod 301, the electric telescopic rod 301 is rotatably connected to the inside of the housing of the sewing machine 2, the output end of the electric telescopic rod 301 is fixedly connected to a press box 302, the bottom of the press box 302 is fixedly connected to four anti-slip strips 303, these anti-slip strips 303 are fixedly connected to the bottom of the press box 302, and the anti-slip strips 303 are fixedly connected to the bottom of the press box 302. 3 can enhance the friction when the pressing box 302 presses the fabric, preventing the elastic fabric from sliding during the lockstitching process. A groove 304 is provided on the top of the workbench 1, and the groove 304 is located directly below the pressing box 302. Four limiting posts 305 are fixedly connected to the inside of the groove 304, and a pad 306 is placed on the top of the four limiting posts 305. The limiting posts 305 can limit the pad 306 to ensure that it is stably placed in the groove 304. A sleeve 307 is fixedly connected to the bottom of the pad 306, and two limiting slots 308 are provided on the outer side of the sleeve 307.

[0022] When the lever 314 is unlocked, the lever 314 is unlocked and the lock 308 is unlocked, so the lever 314 can be unlocked when the lever 314 is unlocked.

[0023] A motor 309 is installed in the internal cavity of the workbench 1. The output end of the motor 309 is fixedly connected to a crescent block 310. The outer side of the crescent block 310 fits with the outer side of the special-shaped block 313. The output shaft of the motor 309 is fixedly connected to an L-shaped shift block 311. The outer side of the L-shaped shift block 311 is slidably connected to the inner side of the shift groove 314. When the motor 309 is started, the L-shaped shift block 311 will rotate with the output shaft and shift the shift groove 314, thereby driving the special-shaped block 313 to rotate. At the same time, the fit between the crescent block 310 and the special-shaped block 313 can ensure the stability of the rotation process, so that the special-shaped block 313 can be accurately rotated ninety degrees.

[0024] The thread cleaning mechanism 4 includes a second motor 401 and a collection box 411. The second motor 401 is installed at the bottom of the workbench 1. The output end of the second motor 401 is fixedly connected to the transmission rod 402. The outer side of the transmission rod 402 is fixedly connected to the cam 403. The bottom of the workbench 1 is fixedly connected to the air cylinder 404. The sliding rod 405 is slidably connected to the through hole at one end of the air cylinder 404. One end of the sliding rod 405 is fixedly connected to the piston 407. The outer side of the piston 407 is slidably connected to the inner side of the air cylinder 404. The other end of the sliding rod 405 contacts the outer side of the cam 403. The outer sleeve of the sliding rod 405 is provided with a second spring 406. One end of the second spring 406 is fixedly connected to the outer side of the air cylinder 404, and the other end of the second spring 406 is fixedly connected to the other end of the sliding rod 405.

[0025] When the cam 403 rotates, it squeezes the sliding rod 405 to make it move, and the elastic force of the spring 2 406 will quickly reset the sliding rod 405, thereby driving the piston 407 to reciprocate in the cylinder 404. The other end of the cylinder 404 is fixedly connected to the air inlet pipe 408, and the outer side of the cylinder 404 is fixedly connected to the air outlet pipe 409. Both the air inlet pipe 408 and the air outlet pipe 409 are provided with a one-way valve. The one-way valve can ensure that air can only enter the cylinder 404 from the air inlet pipe 408 and be discharged from the air outlet pipe 409. One end of the air outlet pipe 409 is fixedly connected to the nozzle 410, and the nozzle 410 is fixedly connected to the top of the workbench 1. The airflow generated by the reciprocating motion of the piston 407 will be blown toward the surface of the workbench 1 through the nozzle 410, and the bottom of the collection box 411 is fixedly connected to the top of the workbench 1.

[0026] The opening of the collecting box 411 is fixedly connected to a bevel block 412, which can guide the thread ends to enter the collecting box 411 smoothly. The inner side of the collecting box 411 is rotatably connected to a flap 413, and one end of the flap 413 passes through the outer wall of the collecting box 411 and is fixedly connected to a pulley 414. A belt is provided on the outer periphery of the pulley 414 and the transmission rod 402. When the transmission rod 402 rotates, the pulley 414 is driven to rotate by the belt, thereby causing the flap 413 to flip continuously, making it easier for the thread ends to enter the interior of the collecting box 411.

[0027] The tension adjustment assembly 5 includes a mounting block 501, which is mounted on the outer casing of the sewing machine 2 by bolts for easy installation and disassembly. One side of the mounting block 501 is fixedly connected to two tension spring telescopic rods 502, one end of the two tension spring telescopic rods 502 is fixedly connected to a U-shaped plate 503, and the inner side of the U-shaped plate 503 is rotatably connected to a thread retaining roller 504. When the lock hem thread passes around the thread retaining roller 504, the tension of the tension spring telescopic rod 502 will keep the thread at a certain tension, and its elastic force can prevent the thread from being too tight and breaking.

[0028] Specifically, first, a square piece of highly elastic fabric is placed flat on a pad 306. This step provides a stable foundation for the subsequent edge-locking operation, ensuring the fabric's initial position is accurate and facilitating precise edge-locking. Next, the electric telescopic rod 301 is activated, and its output end drives the pressing box 302 downward until it firmly presses the fabric. The four anti-slip strips 303 at the bottom of the pressing box 302 make close contact with the fabric surface, effectively increasing friction and preventing the highly elastic fabric from slipping due to force during the edge-locking process. This ensures a stable edge position during edge-locking and lays the foundation for high-quality edge-locking.

[0029] Subsequently, the sewing machine 2 is started to lock the edge of the fabric. At this time, the lock thread will naturally bypass the thread retaining roller 504. Since the two tension spring telescopic rods 502 on the mounting block 501 exert a continuous pulling force on the U-shaped plate 503, this pulling force is transmitted to the lock thread through the thread retaining roller 504, so that the thread maintains a certain tension, ensuring that the stitches are uniform and compact during lock hemming. At the same time, the elastic force of the tension spring telescopic rod 502 can flexibly respond to the tightness changes of the thread, preventing the thread from breaking due to excessive tension, and ensuring the smooth progress of the lock process. When one side of the fabric is locked, the electric telescopic rod 301 drives the pressure box 302 to move upward, releasing the pressure on the fabric on the pad 306. At this time, the spring 1 316, which was originally in a compressed state, releases its elastic force, pushing the sleeve 307 upward, thereby driving the pad 306 to move upward as a whole and disengage from the inside of the groove 304, creating space for the fabric to rotate and change sides.

[0030] After that, motor 1 309 is started, and its output end drives the crescent block 310 to rotate one circle. During the rotation process, the L-shaped shift block 311 rotates accordingly and shifts the shift slot 314 on the special-shaped block 313, so that the special-shaped block 313 rotates accurately ninety degrees. Since the rotating column 312 is fixedly connected to the special-shaped block 313, the rotating column 312 also rotates synchronously. Through the cooperation of the limiting rod 315 and the limiting slot 308, the sleeve 307 drives the pad 306 to rotate ninety degrees together, just making the fabric on the pad 306 rotate to the next edge to be locked. Then the electric telescopic rod 301 drives the pressing box 302 to move down and press the fabric again. This cycle repeats. Under the reliable pressure of the pressing box 302, it can not only ensure that the elastic fabric can effectively avoid the edge of the fabric from slipping when locking the edge, but also realize automatic edge changing, which greatly improves work efficiency.

[0031] In addition, during the edge locking process, excess thread ends will be generated on the workbench 1 due to tangent (whether it is equipped with a tangent structure or manual tangent). These thread ends scattered on the workbench 1 not only affect the working environment, but also interfere with subsequent operations. At this time, the motor 2 401 is started, and its output end drives the transmission rod 402 to rotate, and the transmission rod 402 drives the cam 403 to rotate synchronously. When the raised part of the cam 403 contacts the sliding rod 405, it will squeeze the sliding rod 405 to move toward the inside of the air cylinder 404, compress the spring 2 406, and at the same time drive the piston 407 to move in the air cylinder 404.

[0032] When the raised part of the cam 403 leaves the sliding rod 405, the elastic force of the second spring 406 will push the sliding rod 405 to reset quickly, thereby causing the piston 407 to move back and forth inside the air cylinder 404. The reciprocating motion of the piston 407 causes the air cylinder 404 to inhale air through the air inlet pipe 408, and then transport the air to the nozzle 410 through the air outlet pipe 409. The nozzle 410 blows the air onto the surface of the workbench 1, blowing the scattered thread ends toward the collection box 411. At the same time, when the transmission rod 402 rotates, the belt drives the pulley 414 to rotate, causing the flap 413 to continuously flip over in the collection box 411. The thread ends will smoothly enter the collection box 411 along the inclined block 412 in the gap between the flipping of the flap 413 for centralized collection, keeping the workbench 1 tidy and reducing the workload of manual cleaning.

[0033] The working principle is as follows: first, a square fabric with high elasticity is placed on the pad 306, and then the electric telescopic rod 301 is started to make the pressing box 302 press the fabric, and then the sewing machine 2 is started to lock the fabric. At this time, the lock edge thread will bypass the thread retaining roller 504, and the tension of the tension spring telescopic rod 502 will keep the thread in a certain tension, and the elastic force can prevent the thread from being too tight. When one side of the fabric is locked, the electric telescopic rod 301 will drive the pressing box 302 to move up. At this time, the elastic force of the spring 316 will make the pad 306 move up as a whole and disengage from the inside of the groove 304, and then the motor 309 is started to drive the crescent block 310 to rotate one circle, so that the L-shaped shift block 311 shifts the special-shaped block 313 to rotate ninety degrees, just making the pad 306 drive the fabric to rotate to the next edge. In this way, under the pressure of the pressing box 302, it can ensure that the elastic fabric will not slip when locking the edge, and it can also automatically change edges to improve work efficiency. In addition, the workbench 1 can be equipped with a tangent structure or manual tangent, and the excess thread ends will be scattered on the workbench 1. At this time, the motor 2 401 can be started to drive the transmission rod 402 to drive the cam 403 to rotate, thereby squeezing the sliding rod 405, and then the elastic force of the spring 2 406 can allow the sliding rod 405 to quickly reset, thereby causing the piston 407 to move back and forth inside the air cylinder 404, so that air can be inhaled from the air inlet pipe 408, and then blown out through the air outlet pipe 409 to the nozzle 410, blowing the thread ends on the workbench 1 to the collection box 411. At the same time, the transmission rod 402 drives the pulley 414 to rotate, causing the flap 413 to flip continuously, and the thread ends will enter the collection box 411 along the inclined block 412 in the gap between the flipping of the flap 413 for collection.

Claims

1. A hemming device for producing and processing protective clothing, comprising a workbench (1), characterized in that: A sewing machine (2) is installed on the top of the workbench (1), and a tension adjustment component (5) is provided on the outside of the sewing machine (2). An auxiliary locking mechanism (3) and a thread cleaning mechanism (4) are respectively provided at two locations on the top of the workbench (1). The auxiliary locking mechanism (3) comprises an electric telescopic rod (301), and the electric telescopic rod (301) is rotatably connected to the inside of the shell of the sewing machine (2). The output end of the electric telescopic rod (301) is fixedly connected to a press box (302), and the bottom of the press box (302) is fixedly connected to four anti-slip strips (303). A groove (304) is provided on the top of the workbench (1), and the groove (304) is located directly below the press box (302).

2. The edge-locking device for protective clothing production and processing according to claim 1 is characterized in that: Four limiting columns (305) are fixedly connected inside the groove (304), a pad (306) is placed on the top of the four limiting columns (305), a sleeve (307) is fixedly connected to the bottom of the pad (306), and two limiting slots (308) are provided on the outside of the sleeve (307).

3. The edge-locking device for protective clothing production and processing according to claim 2, characterized in that: A rotating column (312) is rotatably connected in the internal cavity of the workbench (1), the outer side of the rotating column (312) is slidably connected to the inner side of the sleeve (307), the top of the rotating column (312) is fixedly connected to a spring (316), the top end of the spring (316) is fixedly connected to the inner side of the sleeve (307), both sides of the outer side of the rotating column (312) are fixedly connected to a limiting rod (315), and the outer side of the limiting rod (315) is slidably connected to the inner side of the limiting slot (308).

4. The edge-locking device for protective clothing production and processing according to claim 3 is characterized in that: The outer side of the rotating column (312) is fixedly connected to a special-shaped block (313), and the outer side of the special-shaped block (313) is provided with four shifting grooves (314). A motor 1 (309) is installed in the internal cavity of the workbench (1), and the output end of the motor 1 (309) is fixedly connected to a crescent block (310), and the outer side of the crescent block (310) is in contact with the outer side of the special-shaped block (313).

5. The edge-locking device for protective clothing production and processing according to claim 4 is characterized in that: An L-shaped shift block (311) is fixedly connected to the outside of the output shaft of the motor 1 (309), and the outside of the L-shaped shift block (311) is slidably connected to the inside of the shift slot (314).

6. The edge-locking device for protective clothing production and processing according to claim 1, characterized in that: The thread end cleaning mechanism (4) comprises a second motor (401) and a collection box (411), wherein the second motor (401) is mounted on the bottom of the workbench (1), an output end of the second motor (401) is fixedly connected to a transmission rod (402), an outer side of the transmission rod (402) is fixedly connected to a cam (403), and an air cylinder (404) is fixedly connected to the bottom of the workbench (1).

7. The edge-locking device for protective clothing production and processing according to claim 6, characterized in that: A sliding rod (405) is slidably connected to a through hole at one end of the air cylinder (404), and a piston (407) is fixedly connected to one end of the sliding rod (405). The outer side of the piston (407) is slidably connected to the inner side of the air cylinder (404), and the other end of the sliding rod (405) is in contact with the outer side of the cam (403).

8. The edge-locking device for protective clothing production and processing according to claim 7, characterized in that: The outer sleeve of the sliding rod (405) is provided with a spring 2 (406), one end of the spring 2 (406) is fixedly connected to the outer side of the air cylinder (404), the other end of the spring 2 (406) is fixedly connected to the other end of the sliding rod (405), the other end of the air cylinder (404) is fixedly connected to an air inlet pipe (408), the outer side of the air cylinder (404) is fixedly connected to an air outlet pipe (409), the interior of the air inlet pipe (408) and the air outlet pipe (409) are both provided with a one-way valve, one end of the air outlet pipe (409) is fixedly connected to a nozzle (410), and the nozzle (410) is fixedly connected to the top of the workbench (1).

9. The edge-locking device for protective clothing production and processing according to claim 8, characterized in that: The bottom of the collection box (411) is fixedly connected to the top of the workbench (1); a bevel block (412) is fixedly connected to the opening of the collection box (411); a flap (413) is rotatably connected to the inner side of the collection box (411); one end of the flap (413) passing through the outer wall of the collection box (411) is fixedly connected to a pulley (414); and a belt is provided around the outer periphery of the pulley (414) and the transmission rod (402).

10. The edge-locking device for protective clothing production and processing according to claim 1, characterized in that: The tension adjustment assembly (5) comprises a mounting block (501), the mounting block (501) being mounted on the housing of the sewing machine (2) via bolts, one side of the mounting block (501) being fixedly connected to two tension spring telescopic rods (502), one end of the two tension spring telescopic rods (502) being fixedly connected to a U-shaped plate (503), and the inner side of the U-shaped plate (503) being rotatably connected to a thread retaining roller (504).

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